Circuit-controller.



W. S. HENRY.

-CIRCUIT IONTROLLER. PPLlcATloN FILED ocT. 23. 1912.;

Patnted Feb.1,1916.

.2 SHETS-SHEET 1- Ili I.;

A TTO/eNE Y.

" F ig.v 3, looking in the direction of the arcitizen of the-United States, anda resident Specification of Lett ers Patent.

applicati@ meh oetiir g3, 1912. lseriainof'revlaas.

To all whom t may concern S.H ENRY,a

Be it known that I, VVlLLIAM of the city of Rochester, lin .thecounty of Monroe and State? vented'a new` andA useful Circuit-Controller,

' the I lof which thefollowing isa speciication.

l This 'invention relates to arcircuit con-" ftrlle'r. n n a l provide a circuit so inclo'sed and protected that it may be-used safely on outside work.

Other objects and advantages will appear description of the invention progresses, and the novel features of the invention will be partjcularly pointed out in the appended claims.

In describing the' invention in detail, reference ishad to theaccoinpanying drawings wherein I haveillustrateda preferred physi- V A cal embodiment of myA invention, and where' in like characters of reference designate corresponding parts throughout the several views, and in which l Figure l is a plan view of'a device embodying my invention; Fig. 2, is a longitudinal cross-sectional` view upon the line A'-Bgof Fig. 1 looking inthe direction of the arrows; Fig. 3, is a cross-sectional view of apart on the line C`D of- Fig. 1, looki 'ying in the direction of the arrows; Fig. 4, is

' rows; Fig. 5,

across-sectional view upon the line E-F of is a side elevational view of a fragment of Fig. 1looked at in the direction of the arrow a. y i

, Referring to Figs. 1 and2; 1, designates a casngopen at the top and having apertured lugs 2, 3 and 4 -by means of which the casing is attached firmly `to a support or standard. Bothfsides' of the casing 1, have holes therethrough at Gand 7, through which wires of the various circuits to be controlled may be led. As it cannot alwaysbe known beforehand through which side of the casing it will be most convenient to pass the wires,

a plate 8 and a conduit cap 9 are supplied, either of which is adapted to be fastened by' means of-bolts 10, 11, 12-and 13 to either side of the casing.. 1f the wires are brought Athe casing.

infrom the'right hand side the conduit cap will be' fastened to theright hand side as' shown, and the'plate 8 will bexfastened to i the left handfside, but if the wires are ybrought in from the left Ahand side the plate 8 and conduitcap 9 wouldbe'interchanged. Of course itis obvious that the wires may be brought in `'-frolnlboth sidesof 'the casing.

A 'cover Meis provided for closing the-top rateiitdneb. 1, 191e.

ffg'WILLIAM sgrnriiinv, A'or nocHEsTiiR`, Nnwvomi, AssIGivoB. 'ro'4 GENERAL Rarnw-Y.

opening of the casing. The cover is pivoted by Ameans of apin 15 which'is journaled in the lugs ,16and '17,v outstanding from the casing 1 at its rear end. Apacking or gasket 18 is placed in a groove which extends completely aroundy the cover, so situated that when the cover is placdinclosed position the'gasket 18 rests' upon' the upper edge of the casing l1.y A groove 19 is also'formed transversely 'of the cover' and'is so situated that the gasket 18 therein rests upon a contact coven 20 which .tits nicely against both sides ofthecasing land therebetween.- 'l v A pin 28 supported bylugs 21 and 22 is provided for'fasteiiing the hasp link 23 to The other endof the hasp link 23 is -curvedaboutapin 24 which is fasextends transversely tened in a hasp 25. The hasp 25 has a longitudinal slot 26 therein which is provided to receive the apertured lug 27 which is either. cast integral with the cover 14; or fastened rigidlv thereto.

By placing the cover inthe closed position as shown in Fig. 2, and then swinging 'the hasp into the position as' shown in Fig. 2, considerable' pressure is exerted by the'hasp v`to forcethe cover down tightly upon the` casing thereby compressing the gasket 18v and forming a vwater-tight joint 4entirely around the top edge of the casing and also along the cover plate 20 s o thatchamber 29 is protected -againstthe entrance of water either at the junction between the cover and the top edge `of the casing'or 'between the 4 i cover and the top edge ofcover plate 20. By

into the holein aperinserting a padlock be locked in the tured lug 27, the cover may closedposition. L

The casing 1 has a rib 30 rising from the bottom thereof and ribs 31 and 32 projectin@ from the sides thereof; These ribs have helles therethrough to receive. the bolts 33 and 34 by means of which the contact panel 35 made of any suitable insulating material, is firmly attached thereto.

drawn so v'tightly against the ribs 30, .31 and V32 that for all practical purposes'a water` tight Vjoint is formed,thuscompletingthe isolation ofchamber 29 from the influence y ofoutsidezmoistre.

The construction as above described provides a watertight chamber as 29, and achamber 36. which is almost watertight de-y pending upon the 'tightness of the joint bei tween the conduit cap 9 and vany conduit to which it is connected. Itis, however, of noserious moment if waterV or moisture shouldenter the chamber 36, for the wireswhich enter the chamber 36 through the holes A6 or f 7 are, firmlyU and permanently connected to r'os'ion due to moisture.

the binding posts 37 ,38, and 39, and little or no damage 'would be caused by slight cor- Qhamber 29 has, however, been made thoroughly water-tight because the movable contacts. of applicants circuit controller are located therein, as will be later described, because as is well known to those skilled in the art all contacts, which are made -or broken at intervals, must be retained in a bright untarnished and electrically conducting condi-tion.

As before stated the contact panel bears the binding posts 37, 38, and v39. 'Each of `-these .binding posts include la bolt which extends through the `contact panel and holds the brackets 41, 42 and 43 respectively;

tightly against the contact panel and valso makes electrical connection withv such braakets, thus serving as a means to cenduct'electricity from one side of the panel, that is,

lthe side exposed to 'the chamber 36, to the other sideof the panel, that is the side exposed to the chamber 29, and at the same time to ofi-'er no `opportunity for Water or moisture to pass-from one chamber to the other. y

. The bracket 41 bears the arm 44 which Jnay be, by means hereinafter described, moved from contact with the contact'spri'ng 45 supported bybracket 43 intor contact with the contact spring 46supported by bracket 42.V -When` speaking ef the 'contact springsy 45 land 146 hereinafter, I vshall refer 4to contact spring 45 as the no1- malcontact and to contact spring 46 as the reverse contact.v

Although applicants construction preh vents the entrance of moisture or water into -the chamber 29 it docs not prevent the condensation of moisture upon vthe under side of the cover 14. Heretofore such condensed moisture forming upon the under side of The contact panel 35 by'means of theubolts 33 and--34 is;f

edy. forsuch difl'iculty in the cover .plate20. This cover plateisfpivoted on the pins 47 resilient Contact electricity or at leasttgreatly increase the i, resistanceat the .points -of contact. Appli- 'c'ant has in his construction provided a remand 48, which are'fastened to the opposite 'sidesoffthe casing 1. The cover plate 20 isprevented from. 'becoming displaced by 20 extends over l all of the contact springs when 1n the position as shown in Fig. 2, conmeans of the`.;.cotter pins'49. The cover plate sequently any moisture which may collect Alink 53 made ofv any suitableinsulating Inaterial, preferably mica, with the contact arm 44. The other end of the insulating `link 53 is connected by means of pins 54 to .the rocker 55. [Rocker 55 ispivoted upon -a rod 56 which extends vtransverselyv of the case 1 and 1s supported by the sides thereof.

is ournaled a roller as 59'v and 601.. The rollers 59and 60 are lso situated that ,they lie in the path of movement of'v a camV shell des# lgnated generally by 72'. yThis cam shell has two separate faces 'as 62'` and 63A so situated It has two arms L57 and 58 in eachkof which and spaced that 'when one cam face starts to contact with roller 59,;the other cam face is just moving out of contact with roller 60 whereby contact arm `44 is always under positive control. lfVhen' referring to rocker 55 hereinafter, the position as shown in Fig. 2 will be designated as :the normal position.

Asquare shaft 64 eXtends transversely of' thecase and on either end has bushings 65, whlch have a circular outer periphery whereby the shaftr is journaled in the beari ings '66, formed in the sides off the casing 1.

- This shaft bears at intervals! the drivers. 67

which have vteeth 68 cut about-teir entire periphery. The teeth of the driver-v 67 engage with the worm wheel 69 4.which is journaled in the clamp 70*` which clam-p" 70;- is pivoted upon the pin 71. The pin 71'is supported by the wallsv of thel cam shellj72., An apertured end` of the clampl 76 extends-fever and in alinement with air-apertured 73 upon the cam shell 72." A bolt-74. is passed through the apertures of the lug 731aud'the end of clamp 70, vso that by' means o the rnuts'. 75,-, the clamp 79 may be held firmlyA in a given position relative t'o. lug 73, andj as l worm wheel 69 is 'journaled in clampmand bears agat driver 67'it may beclalnped' so firmly against driver67 that it cannot be turnedby means of -ascre driver inserted' in'theslotf76, and as driver 67' can not turn reiaaveiyitofshaft @and @am 'Sheuva Cannot movel v"without a corresponding movemay be-lirmlyfheld in position. InV order to'alloWf-tliecam shell 72 to rotaterelative to the' shaft 64, when desired, bushings 77 yhavefbeen placed upon lthe shaft 64 andthe lcam shell 72 has been made to bear upon their Aouter circular periphery.

The normal position of shaft 64 would, if

lcam shell 72 were rigidly attached thereto,

determine the -exact position of the s cam i faces .62'and '63, butas different conditions require different operations of-a circuit controller it is necessary to lprovide an adjustment-between the shaft'64'and the cam shell 72.K This adjustmentr is' found in the parts just .described in connection with the driver 67, the wormwheel 69, 4 the clamp 70 and the bolt y74.v -lffthe position `ofY cam shell 72 foi-the particular situation lis notas it should be, then .in order to adjust it, it is merely necessary to loosen nuts 75,` thereby loosening lclamp 70, which 'allows Worm k'wheel 69 to-be freely turned by means of a trollers Within the. casing.

y fscrew driver inserted in slot 76,-. As driver Vof Wheel 69 will cause a rotation of' car'n shell 72 about the axis of shaft 64. When y the desired position of the ca m surfaces 62v and 63`has been reached the nuts 75 arev 67 cannot rotate about shaft 64 a turning tightened thereby .causing clamp-70 to clamp wheel 69 tightly against driver 67 so that all parts will remain permanently in the adjusted position. Y This y method of adjustment, it should beobserved, 1s extremely.

precise, lso that a'very minuterhangev in the position ofv cam surfaces 62 and 63 may be readily made, by reason of the large size ofwor'm wheel69 andY driver 67 ,and at the same time it is very strong and substantial. The connection between the driver 67 and the cam shell 72 is such that the cam shell 72 will be. forced vto movewitli the driver 67 even if aftenmaking an adjustment by;

loosening-nuts 75, the personso doing nevlectsto tightensaidnuts.

a he construction of the means for adjust- I ing the cam shell72 relatively to theshaft -64.is shown, described and claimed in mycopending application, Serial No, 875,034, filed December 1st, 1914, Whichis a division .of this application. f

The ex ernal eans for moving the shaft 64 I and so all of the operated partsv inside of the easing is the crank arm 82, which is pinned to the shaft 64 outside of thepcasing so that a movement of thevv arm 82by-any suitable means causes a movement of the circuit 'con- Because of reasons which Willbe later explained it is sometimes desirable to lcause "shaft 64-and protected by the hood 79, 'to- 'gether with the pin 80 firmly attached to the casing l and the'pin-Sl irmly'attached to the crank arm 82. The endsof'the spring 78 extend downwardly so that they are both in the path of movement of the pin 81 and consequently are in operative relation with the pin which lies above pin 81. If while the crank-arm 82 is in the position as shown in F 5, the connection from it to the moving means were broken, thenthe spring7 8 would, by action upon pin 81, bring itto the vertical position in line with pin- 80.

With-all of v the parts in the position as shawn 'in Fig. 2, the arm4-4 makes contact with contact'spring 45. If the arm B is moved toward the reverse positionthat is in the direction. of the arrow b, then upon' aV very slight movement of arm 82, the -Cam face 63 will move out of contact with roller 59 and cam face 62 will move nto contact 'with roller 60 thus forcing contact arm 44 into contact with contact spring 46. The

extent of movement of arm 82 before cam surface 63 releases roller 59 may be. made y anything desired, that is, upon the slightest movement. of arm 82 cam face 63 can be made to disengage roller 59 or by'suitably.

adjusting cam shell 7 2'vthe extent necessary in arIn 82 `before cam face 63 disengages roller 59 maybe made very great. AIn fact by moving cam shell 72 to a very considerable angle, the cam face 63 lmay be made to los bear in its lnormal position against roller. 60,

thus causing contact arm 44 to normally upon a movement of arm 82 in the direction of arrow b the contact arm 44 would be `moved positively vinto engagement with the contact'sp'ring 45 and the movement of contactarm 44 could beso regulated that no moveinentat all would take place until just before the arm 82 reachedthe limit of its movement ,inv the direction of the arrow b.

vThe position of such a cam is illustrated by ,make contact with contact spring 46, so that, 'I

the right hand camy on shaft 64 as shownv in Fig. 1. A contact controlled by such a cam could be called a reverse vcontact as it is formed just before or at `the moment when the arm 82 reaches its full reversepositlon.

Applicant ically to the vertical position when the .means connected to it for movingit become broken. The reason for such, a mechanism arises from the fact that it is sometimes very desirable to break the normal contact when j has heretofore described a,"

means for causing arm 82 to lnove automatcontrolling means,

anything hap-pensato` the circuit controllerftherebyfindicating the 4defect by the inoperativen' essflof` the circuit controlled thereby,u

The complete mechanisml heretoforel decontain elements `rendering itpositive in-faction;" easily adscribed will be perceived'to justable through a vvery: wide range ;v `and of f such a nature that the I'i'arts-will readily rerendered Water tight," it is s'tillvvery easy to main in 'an adjusted' ositilon. `It will Abe further noticedthat a though the chamber containing the operating contacts :has been reach ythe operating-contacts in the -water 'tight chamber. for all that is necessary is to raise the outer cover let-and the contact lcover ,fboth of Whichoperationsare the simplest possible.-

. t Although I lhave--particularly described the construction of one physical embodiment of my invention, and explained the operation and principle thereof nevertheless',.1. t desireto have it understood that the form selected is merely illustrative, but does notl exhaust the possible physical embodiments of the idea of `means underlying vmy invention. v

; What 1 claim as new and desire to securei by Letters Patent of the'United States, is:

i spring, a rocklever,

.t connecting the rock ,35 arm, an operating shaft, a cam secured to 1. A circuit controller comprising a iixed contact spring, a movable contact arm arranged to be Amoved into contact with said means for` operatively lever and said contact said shaft and having a cam face substan- -ranged to coperate with said face of said said face of said cam being slightly shorter than the distance between said ,55,

said :2. A circuit controller comprising asuptially concentric with' the axis of said shaft, and two rollers carried by said rock lever 'and arranged-to coperate with theface of cam.

porting panel of insulating material, a movable contact arm supported b said panel, a contact spring secured to sai panel in position to betouched by said contact arm, a means for operatively connecting lever` and said contact arm, an ofper\atingvshaft, a cam secured to said shaft and having av ca'm face rollers carriedby said rock leverand arcam,

rollers. 1 v

3. A circuit lcontroller comprising a fixed contact spring, a movablefcontact arm arranged to be-moved into and out of contact with said spring, 'a rocklever, means forconnecting said rock lever and said contact arm,an operating shaft, a cam secured to said shaft and having a cam face substantially. concentric with the axis of said shaft,

said cam face being beveled at its ends, and" two rollers carried byv said rock lever and i having bstantially coiicentric Withthe axis of said shaft, and'two Llamas? arranged to coperate with saidcam face, the' distancefbetween v`said' rollers being slightly greater than the distance between thefbeveled ends ofsaid cam -face of said'f' 70 l4.1Afcircuit.controller comprising a fixed A contact spring, ai movable contact'arm arranged 'to contact with said spring, a rock lever, meansv for op rocklever andsaid contact arm, an operatsecured to said shaft and having'two separate cam faces substantially lconcentric with the axis of said `shaft ,and i arranged on opposite sidespthereoand two rollers carried. by said rock lever andarranged cam.

l stantially concentric to the axis-thereof, and

two rollers carried by said rock lever and arranged to coperate with said'cam face.

. 6. A circuit controller-comprising a supporting panel'of insulating material, a movable contact arm supported by said panel, a

contact spring secured to said panel in posi- 100 tion to be touched by said contact arm, a rock leven-means for operatively connecting said rock lever and said contact arm, an operating shaft, a cam secured to said shaft and.'

rollers carried by said rock lever and arranged to li'coperate l with the respective faces of said cam.

7. A circuit controller vcomprising a movable contact arm,

tact arm, -a rock lever, alink connecting said contact arm and one end of said rock lever, an operating shaft, a cam/secured to said 'shaft and having a' cam/ face substantially 115 concentric Withthe axis of/tsaidshaft, said cam face being beveledx at, its ends', and two rollers carried by said rock 'lever and arranged to coperatewith-,said cam face.

8. A circuit controllerl comprising a sup- 12.0

porting panel of insulatingmaterial, a re- A silient contact arm fixed at one end to `said Y panel, contact .springs .secured to saidpa'nel and arranged on opposite sides of said con# tact arm in position to be touched thereby, 125

a rocklever mounted for oscillation adjacent'to said panel, a link pivotally connected at its ends to said rock lever and to. said contact arm respectively, an operating shaft, aV caml secured t'o'said shaft and hav- 130 eratively "connecting said r,

to cooperate with theface of saidl 5. A circuit controller comprisinga ver- -ticallydisposed supporting panel .of insutwo separate cam faces, and two a fixed contact spring arranged 1n' position to be touched by said coning two separate cam faces substantially concentric with the said operating shaft and tween the corresponding beveled ends of said cam faces. i

9. A circuit controller comprising a supporting panel of insulating material, a'

resilient contactarm Aixedat one'end to said panel, contact springs secured to said panel andarranged t0 coperate with said contact arm, a rock' lever mounted for oscillation adJacent to said panel, means connectingl said rock lever and said contact arm, an operating shaft, a cam ]ournaled on said shaft and having two walls connected byarcuate cam faces substantially concentric with said shaft, means supported by the walls of said cam for adjusting said cam on said shaft andl for holding it in its different adjusted positions, the ends of said cam faces being beveled and two rollers carried bysai-d rock lever and arranged in position to be engaged by said cam faces.'

l0. A clrcuit controller comprising a supporting panel of insulating material, a movable contact arm supported by said panel, i

contact springs secured to said panel and arranged on opposite sides thereof in position to be touched thereby, a rock -lever mounted 'for oscillation adjacent to said panel, a link connecting .said vcontact arm and said rock lever, an o erating shaft, a cam journaled on said shaft), a member fixed said cam, said cam having a cam face substantially concentric with the aXis of said shaft and beveled at its ends, and. two rollers to said shaft and djustably connected to..

revolubly mounted on said rock lever and arranged to coperate with said cam face, the distance between said rollers being substantially the same as the distance between the beveled ends of said camface.

, l p WILLIAM s. HENRY. Witnesses:

` LILL'IAN L. PHILLIPS,

LYNN CURRY. 

